CN205485422U

CN205485422U - IGBT digital driver based on FPGA

Info

Publication number: CN205485422U
Application number: CN201520882353.9U
Authority: CN
Inventors: 张树松
Original assignee: Beijing Ltlt Technology Ltd
Current assignee: Beijing Ltlt Technology Ltd
Priority date: 2015-11-09
Filing date: 2015-11-09
Publication date: 2016-08-17
Anticipated expiration: 2025-11-09

Abstract

The utility model discloses a triggering the instruction according to valve accuse system and opening or close the IGBT device, the voltage current information of simultaneous acquisition IGBT device feeds back to the IGBT digital driver based on FPGA of valve accuse system, including base plate (1), IGBT signal acquisition module (2), keep apart power module (3), FPGA module (4), AD module (5) and territory accuse communication optical fiber module (6), IGBT signal acquisition module (2) keep apart power module (3), and FPGA module (4), AD module (5) and territory accuse communication optical fiber module (6) connect gradually, IGBT signal acquisition module (2) keep apart power module (3), and FPGA module (4), AD module (5) and territory accuse communication optical fiber module (6) are installed on base plate (1).

Description

A kind of IGBT digit driver based on FPGA

Technical field

This utility model relates to digit driver field, specifically refers to a kind of IGBT digit driver based on FPGA.

Background technology

Driving problems currently for high-power IGBT; IGBT power switch component itself is a performer; need driver to produce triggering pulse to turn on or turn off, simultaneously need to gather voltage x current information, not only need to report but also in particular cases IGBT device is protected.

Utility model content

The technical problems to be solved in the utility model is: providing one to be turned on or off IGBT device according to valve control system triggering command, the voltage x current information simultaneously gathering IGBT device feeds back to the IGBT digit driver based on FPGA of valve control system.

Technical solution of the present utility model is: a kind of IGBT digit driver based on FPGA, including substrate, IGBT signal acquisition module, insulating power supply module, FPGA module, A/D module and territory control telecommunication optical fiber module, described IGBT signal acquisition module, insulating power supply module, FPGA module, A/D module and territory control telecommunication optical fiber module be sequentially connected with, described IGBT signal acquisition module, insulating power supply module, FPGA module, A/D module and territory control telecommunication optical fiber module are arranged on substrate.

As improvement, described IGBT signal acquisition module, insulating power supply module, the quantity of FPGA module, A/D module and territory control telecommunication optical fiber module is two, constitute two groups of sequential circuits, often group sequential circuit all has IGBT signal acquisition module, insulating power supply module, and FPGA module, A/D module and territory control telecommunication optical fiber module are sequentially connected in series.

As improvement, between described IGBT signal acquisition module and IGBT, the plug of contact pin type is used to be connected.

Above method is used compared with prior art to have the advantage that the driving problems that present invention mainly solves high-power IGBT; IGBT power switch component itself is a performer; need driver to produce triggering pulse to turn on or turn off; simultaneously need to gather voltage x current information, not only report but also in particular cases IGBT device is protected.

This driver uses control chip based on FPGA, utilize the concurrent processing ability of FPGA, multiple functions process simultaneously, can ensure that real-time and the reliability of process, in order to tackle the electromagnetic environment of complexity, using insulating power supply, isolating power is up to 6KV, and communication with the outside world uses optical fiber solutions to improve capacity of resisting disturbance.

Accompanying drawing explanation

Fig. 1 is the block diagram of IGBT digit driver based on FPGA of the present utility model.

Shown in figure: 1, substrate, 2, IGBT signal acquisition module, 3, insulating power supply module, 4, FPGA module, 5, A/D module, 6, territory control telecommunication optical fiber module.

Detailed description of the invention

1 the utility model is described in further detail below in conjunction with the accompanying drawings.

A kind of IGBT digit driver based on FPGA, including substrate 1, IGBT signal acquisition module 2, insulating power supply module 3, FPGA module 4, A/D module 5 and territory control telecommunication optical fiber module 6, described IGBT signal acquisition module 2, insulating power supply module 3, FPGA module 4, A/D module 5 and territory control telecommunication optical fiber module 6 be sequentially connected with, described IGBT signal acquisition module 2, insulating power supply module 3, FPGA module 4, A/D module 5 and territory control telecommunication optical fiber module 6 are installed on substrate 1.

Described IGBT signal acquisition module 2, insulating power supply module 3, the quantity of FPGA module 4, A/D module 5 and territory control telecommunication optical fiber module 6 is two, constitute two groups of sequential circuits, often group sequential circuit all has IGBT signal acquisition module 2, insulating power supply module 3, FPGA module 4, A/D module 5 and territory control telecommunication optical fiber module 6 are sequentially connected in series.

The plug of contact pin type is used to be connected between described IGBT signal acquisition module 2 and IGBT.

Plate is driven to use the 2 identical circuit of set for driving 2 road IGBT, 2 big major function executed in parallel, function 1: receive the control instruction from valve control, this instruction is digital, Manchester's code is used to be received as 2M bit/s, send the information such as voltage x current of collection simultaneously, send the Manchester's code using 4M bit/s.Function 2: utilize AD Real-time Collection voltage x current information for feedback and over-voltage over-current protection.Function 3: produce pwm pulse according to the triggering command issued and trigger IGBT, simultaneously according to voltage x current Determines the need of protection blocking.

Beneficial effect:

1. making controller digitized, such benefit is to have shared the partial function of valve control system, such as over-current over-voltage protection, state-detection.

2. make whole IGBT drive procedure module, it is simple to the division of systemic-function, facilitate project installation and commissioning.

3. it is easy to large-scale production and debugging, and reliability detection.

Control chip uses the FPGA model of Actel company to be M2GL010-TQ144 simultaneously, and this chip uses FLASH technique capacity of resisting disturbance strong, uses HFBR-1414 and HFBR-2412 single-mode fiber head with valve control system communication.

Current and voltage signals gathers the AD7606 model of practical AD company, and this model is extensively practical in power industry, and single 5V power supply is powered, and easy to use and reliable, sample rate 200K/s meets far away requirement.

Power supply is powered and is used the insulating power supply module of RECOM company, and isolation voltage is up to 6KV.

FPGA concurrently performs 2 major functions, function 1: the communication to valve control system.Function 2: Acquisition Circuit information of voltage.Function 3: produce and trigger pulsed drive IGBT.

This description does not has restricted, and shown in figure is also one of embodiment of the present utility model, and actual structure is not limited thereto.If generally speaking those of ordinary skill in the art is enlightened by it, in the case of creating objective without departing from this utility model, design the frame mode similar to this technical scheme and embodiment without creative, protection domain of the present utility model all should be belonged to.

Claims

1. an IGBT digit driver based on FPGA, including substrate (1), IGBT signal acquisition module (2), insulating power supply module (3), FPGA module (4), A/D module (5) and territory control telecommunication optical fiber module (6), described IGBT signal acquisition module (2), insulating power supply module (3), FPGA module (4), A/D module (5) and territory control telecommunication optical fiber module (6) are sequentially connected with, described IGBT signal acquisition module (2), insulating power supply module (3), FPGA module (4), A/D module (5) and territory control telecommunication optical fiber module (6) are arranged on substrate (1).

IGBT digit driver based on FPGA the most according to claim 1, it is characterized in that: described IGBT signal acquisition module (2), insulating power supply module (3), the quantity in FPGA module (4), A/D module (5) and territory control telecommunication optical fiber module (6) is two, constitute two groups of sequential circuits, often group sequential circuit all has IGBT signal acquisition module (2), insulating power supply module (3), FPGA module (4), A/D module (5) and territory control telecommunication optical fiber module (6) are sequentially connected in series.

IGBT digit driver based on FPGA the most according to claim 1, it is characterised in that: use the plug of contact pin type to be connected between described IGBT signal acquisition module (2) and IGBT.